SpireUSA : Icon Laptop Backpack Review Pros: Well made. Lightweight and comfortable to use. Very compact yet has a good amount of room. Cons: No outside cell phone pocket. For about a year or so now I have heard about Spire. How they make great bags and backpacks. How the quality is superb. How comfortable they are. Well I’m here to say all of this is an understatement. I tested the Icon backpack for the G4 Titanium and was really impressed. What impressed me first off was the sleeve for the Powerbook G4. It fit perfectly. I actually used the sleeve a week before I used the Icon. While testing the...